JPS60508B2 - fluid equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid device that sucks water from a water tank with a pump, pressurizes it, and jets it out from a nozzle, such as a sanitary flushing toilet device that cleans the rainbow gate after defecating due to overflowing water. , which relates to a fluid device that discharges a relatively small amount of water, and aims to provide a water receiving device that is suitable for the actual usage of the device.

Conventionally, this type of fluid equipment is constructed as shown in FIGS. 5 to 7, taking a sanitary flushing toilet device as an example. 31 is a toilet bowl, and 32 is a water tank for washing the toilet bowl 31, so-called a low tank.

There is a toilet seat body 33 on top of the toilet bowl 31, and a separate cleaning device 34 is located on the side of the toilet bowl 31. As shown in FIG. 6, the interior of the cleaning device 34 is composed of a self-priming pump 35, a flow control valve 36, and a hot water tank 37, and a nozzle attached to the toilet seat body 33 is located at the end of the water circuit. It has 38. A ball tap 40 having a float 39 attached to its tip is attached to the low tank 32, and the ball tap 401 branches off a water pipe 41, and water pressure is applied through a water stop valve 42. FIG. 7 shows a schematic cross-sectional view of the structure of the ball tap 40, which includes a lever body 44 connected to the float 39 via a connecting rod 43, and a rotational movement of the lever body 44 of the bracket that comes into contact with this lever body 44. A movable body 45 that moves in the horizontal direction is provided. A rubber valve body 46 is attached to the tip of the movable body 45.
A water stop part is formed between the Therefore, when the water in the low tank 32 is used and the water level drops, the float 39
As a result, the movable body 45 is pushed back by the rotation of the lever body 44 in the direction of the hour hand, and opens the water stop valve. As a result, from the discharge port 49 of the ball tap 40 to the low tank 32
Water is supplied to When water is supplied, the float 39 rises, and its buoyancy moves the movable body 45 forward via the lever body 44. When the float 39 reaches a certain height, the water stop section is closed and water supply to the low tank 32 is stopped.
To supply water to the cleaning device 34, a water supply port 51 is attached to the tip of a flexible tube 50 connected to a pump 35, and this water supply port 51 is placed below the water surface of the low tank 32, so that the water is self-suctioned by the pump 35. This is done by The flow rate control valve 36 is a three-way valve, and a circulation circuit 52 that opens when the degree of restriction is large is installed so that the primary sides of the flow rate control valve 36 and the pump 35 are connected to each other. In this configuration, when a user performs a cleaning operation, power is supplied to the pump 3 and the pump 35 is driven, sucking water from the low tank 32 through the water supply port 51 and supplying water to the cleaning device 34 through the flexible tube 50. be done. In this case, when the flow rate adjustment valve 36 is closed, water circulates through the pump 35 and the flow rate adjustment valve 36 through the circulation circuit 52. As the user opens the flow control valve 36, water pressure of 75i is added to the hot water tank 37,
In addition, hot water heated by the heater 53 is jetted out from the nozzle 38 and supplied for cleaning. At the same time as hot water is discharged from the nozzle 38, the water level in the low tank 32 decreases, causing a flow.
- As the port 39 descends, the water stop portion of the ball tap 40 is opened, and water is supplied from the discharge port 49 to the low tank 32. Due to the nature of the ball tap 40, the amount of water supplied from the ball tap 40 is stable at the same amount as the amount of hot water jetted from the nozzle 38. Generally, the optimal flow rate for cleaning the iris, etc. is 0.4~ 0.8 so/min, and in order to discharge such a small flow rate from the pole tap 40, the degree of opening of the water stop part is extremely small, and the water must pass through the small gap in this water stop part. Because it flows at high speed, it is very common for the valve body 47 and valve seat 48 that make up the water stop part of the ball tap 40 to be seriously damaged, making it impossible to stop the water. With regard to the flow rate, the operation of the water meter installed in each home becomes unstable, resulting in the inconvenience that water is not measured even when water is used.Also, when cleaning the Hongmen area, etc., the amount of water used for washing becomes unstable. The pump 35 is configured as a high-pressure type because the washing water pressure has a great effect on the cleaning effect.Furthermore, when the opening degree of the flow rate adjustment valve 36 is small, the pressure on the secondary side of the pump 35 becomes high. The circulation circuit 52 is provided to prevent damage to the pump 35 and the piping 54, but even with the circulation circuit provided, the pressure on the secondary side of the pump 35 is still quite high, and the bag seal part and the connection part of the pump 35 are The present invention was made to solve the above-mentioned conventional drawbacks, and the present invention will be described below with reference to the drawings showing one embodiment of the present invention. I will explain based on this.

FIG. 1 is a perspective view showing the external appearance of the sanitary flushing toilet device, and FIG. 2 is a diagram showing the schematic configuration of the flushing water circuit. This first
In Figures 1 and 2, 1 is a toilet bowl, a toilet seat body 2 is attached on top of the toilet bowl 1, and a cleaning device 3 integrated with the toilet seat body 2 is located on the side of the toilet bowl 1. ing. The cleaning water circuit of the cleaning device 3 is connected to water pipes (water supply source).
A water stop valve 6 attached to a joint 5 branched from 4, a strainer 7, a solenoid valve 8, a water tank (used as a water receiving device) 9, a pump 10, a flow rate adjustment valve 11, a hot water tank 12, a vacuum It is constructed by connecting a rupture valve 13 and a nozzle 14. FIG. 3 is a sectional view of the water tank 9, in which a diaphragm 16 is attached to the lower part of the tank (water tank section) 15 so as to be immersed in the water.

A plate 17 is in contact with the lower surface of the center of the diaphragm 16, and a support rod 1 extends from the plate 17.
8 is in contact with the operation button 201 of the microswitch 19 provided below. The plate 17 is biased upward by the spring 21 to counteract the weight of the water. The microswitch 19 is electrically connected to the solenoid valve 8, and when the operation button 20 protrudes upward, the solenoid valve 8 is energized to open the water stop portion of the solenoid valve 8, and the operation button 20 is connected to the diaphragm. By the operation of 16, the connected shank 1
8, the electromagnetic valve 8 is de-energized and the water stop portion is closed. In addition, a discharge port 22 to which the pump 1 is connected is provided on the lower side wall of the tank 15 of the water receiving tank 9, and an overflow port 23 is provided in the upper part of the tank 15 at a position higher than the highest water level position A. When this overflow port 23 becomes full of water due to an abnormality,
An overflow pipe 24 as shown in FIG. 2 is connected to flow into the toilet bowl 1. Further, a water intake port 25 connected to the electromagnetic valve 8 is provided on the upper surface of the tank 15, and the water intake port 25 is located at a position higher than the overflow port 23 by at least 25 ribs. Reference numeral 26 denotes a vent that allows the inside of the tank 0 to 15 to pass through the atmosphere.
Atmospheric pressure is constantly applied to the water surface inside the tank.

The microswitch 19 has a pushing force (OF value) and a returning force (RF value) that are different, and the OF value is higher than the RF value. Therefore, the amount of water required to push the microswitch 19 is greater than the amount of water required to return. As a result, the water receiving device composed of the water receiving tank 9 and the solenoid valve 8 exhibits an intermittent operation in which the water surface B to which water is supplied and the water surface A to which water is stopped are different. It has a circuit, and when the degree of opening of the flow control valve 11 is small, it circulates internally.

When the user performs a cleaning operation when the water level in the water tank 9 is at position A, the pump 10 is driven and water pressure is transmitted downward according to the opening degree of the flow rate adjustment valve 11. The hot water heated in the hot water tank 12 is jetted out from the nozzle 14 and is used for cleaning the iris and the like. This/cheat 14
At the same time, the same amount of water as the hot water is spouted from the water tank 19 is sucked by the pump 10 into the water tank 9.
water level decreases. When this water level falls and reaches position B, the operation button 20 of the microswitch 19 returns to the upper position, supplies power to the solenoid valve 8, and opens the water stop section, so that water is supplied into the water tank 9. be done. Also, the water level is rising and A
When the position is reached, the operation button 20 of the microswitch 19 is pressed, and the supply of power to the solenoid valve 8 is stopped, thereby stopping the water supply to the water tank 9. In this way, in the embodiment of the present invention, the characteristics of the microswitch 19 are effectively utilized to configure a water receiving device that performs intermittent operation with two water level controls, so that the water stop portion of the solenoid valve 8 can be completely opened and closed. As a result, the problem of damage to the water stop portion, which was seen in the conventional example, is eliminated.

In addition, the water level of the water receiving tank 9 is detected by measuring the weight of water using the diaphragm 17.
The operation is reliable because the water is received at Even if the contact of the microswitch 19 were to fall off, water would not be supplied, and it would work on the safe side. Furthermore, even if the toilet is full of water, water will be drained into the toilet bowl 1 through the overflow pipe 24. Furthermore, since the water supply flow rate from the solenoid valve 8 can be increased to 1/min or more, the water heaters in each household will operate reliably, and the amount of water used will be:
be weighed reliably. FIG. 4 is a diagram showing a configuration in which the pump 27 is installed inside the water receiving tank 9, and 28 is a motor for driving the pump 27.

By providing the pump 27 inside the water receiving tank 9 in this manner, not only the structure becomes smaller, but also there is no need to completely seal the water of the pump 27, and the structure of the pump 27 itself becomes relatively simple. This configuration also has the excellent advantage that the circulation circuit can be easily constructed. Further, since the drive motor 28 is located above the water surface and is connected to the submerged pump 27 by a connecting rod 29, a sea bream seal for the pump 27 is also unnecessary. As described above, the present invention
The company provides fluid equipment with a water receiving device that is optimal for low-flow overflows, and is said to prevent damage to the water stop part and ensure stable operation of water meters used in households. It has excellent features.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a sanitary flush toilet device showing one embodiment of the present invention, Fig. 2 is a schematic configuration diagram of a flush water circuit in the same device, and Fig. 3 shows an embodiment of a water receiving tank in the same device. 4 is a vertical sectional view showing another embodiment of the same water tank; FIG. 5 is a perspective view of a conventional sanitary flushing toilet device;
Figure 6 is a schematic diagram of the washing water circuit in the same device;
The figure is a longitudinal sectional view showing the relationship between the ball tap and the float in the same device. 8. ．． ．． ．． ．． ．． Solenoid valve, 9...Water tank, 10,
27... Pump, 11... Flow rate adjustment valve, 14... Nozzle, 16... Diaphragm, 1
9...Micro switch. Figure 1 Figure 2 Figure 3 Figure 5 Figure 4 Figure 6 Figure 7

Claims (1)

[Claims] 1. A solenoid valve that is directly connected to a water supply source, a water receiving device that receives water supplied from the solenoid valve, a pump that sucks water stored in this water receiving device, and sequentially connected to this pump. The water receiving device includes a water tank section and a water level control means, the water level control means comprising:
turning off the solenoid valve when the water level in the water tank is high;
A fluid device configured to turn on this solenoid valve when the water level is low. 2. The fluid device according to claim 1, wherein a pump is provided inside the water receiving device.